398295180

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{1307}}^1\times {\mathrm{1693}}^1$

素因数の和:3015

約数の個数: 72

約数和(自身を含む): 1209800592

約数和(自身を除く): 811505412

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 1307, 1693, 2614, 3386, 3921, 5079, 5228, 6535, 6772, 7842, 8465, 10158, 11763, 13070, 15237, 15684, 16930, 19605, 20316, 23526, 25395, 26140, 30474, 33860, 39210, 47052, 50790, 58815, 60948, 76185, 78420, 101580, 117630, 152370, 235260, 304740, 2212751, 4425502, 6638253, 8851004, 11063755, 13276506, 19914759, 22127510, 26553012, 33191265, 39829518, 44255020, 66382530, 79659036, 99573795, 132765060, 199147590, 398295180]

約数ペア:

[(1, 398295180), (2, 199147590), (3, 132765060), (4, 99573795), (5, 79659036), (6, 66382530), (9, 44255020), (10, 39829518), (12, 33191265), (15, 26553012), (18, 22127510), (20, 19914759), (30, 13276506), (36, 11063755), (45, 8851004), (60, 6638253), (90, 4425502), (180, 2212751), (1307, 304740), (1693, 235260), (2614, 152370), (3386, 117630), (3921, 101580), (5079, 78420), (5228, 76185), (6535, 60948), (6772, 58815), (7842, 50790), (8465, 47052), (10158, 39210), (11763, 33860), (13070, 30474), (15237, 26140), (15684, 25395), (16930, 23526), (19605, 20316)]